Annual report pursuant to Section 13 and 15(d)

Short Term Debt - Additional Information (Details)

v3.22.1
Short Term Debt - Additional Information (Details) - USD ($)
12 Months Ended
Jul. 01, 2021
May 01, 2020
Apr. 30, 2020
Jan. 01, 2022
Jul. 31, 2021
Jan. 02, 2021
Short Term Debt [Line Items]            
Short term debt       $ 288,000   $ 3,042,000
Customer Advance Payments            
Short Term Debt [Line Items]            
Debt maturity date       Dec. 31, 2021    
Short term debt       $ 0   1,026,000
Total funding received     $ 1,200,000 1,200,000    
Amount of debt forgiven       1,100,000    
Repayments Of Debt       74,000    
Promissory Note | PPP Loan            
Short Term Debt [Line Items]            
Debt maturity date   Apr. 27, 2022        
Loan amount   $ 1,800,000        
Credit facility interest rate   1.00%        
AFCO Credit Corporation            
Short Term Debt [Line Items]            
Short term debt       $ 288,000   144,000
AFCO Credit Corporation | AFCO Financing Agreement            
Short Term Debt [Line Items]            
Debt face amount         $ 538,000  
Debt interest rate         3.30%  
Initial down payment $ 134,000          
Frequency of periodic payment       monthly    
Monthly principal payments       $ 61,000    
Debt instrument, redemption period, start date       Aug. 01, 2021    
Debt instrument, redemption period, end date       Apr. 01, 2022    
Short term debt       $ 288,000   $ 144,000